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| Document Title | UN R117: Proposal for Supplement 3 to the 04 series of amendments | ||||||||
| Reference Number | WP.29/2025/76 | ||||||||
| Date |
10 Apr 2025
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| Summary | Proposal to standardize provisions for the water depth measurement, reduce the track friction range requirements under the test procedures, clarfy that adhesion performance on wet surfaces (wet adhesion) is required not only for C1 tyres, but also C2 and C3 tyres, update the standards references to ASTM F2493-244, F3611-24, F3676-24, F3675-24 and ISO 4000-1:2024, align the definitions of tread groove and principal grooves with proposals for UN R30 and R54, simplify the wording of the requirements for professional off-road tyres, and correct the transitional provision in paragraph 12.23. to specify approvals “first issued after 31 August 2028”. | ||||||||
| Rulemaking Area(s) | UN R117 Tire Noise, Wet Adhesion, and Rolling Resistance | ||||||||
| Regulatory Impact |
04 series of amendments | Supplement 3
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| Proposal Status | Adopted by WP.29 | ||||||||
| Meeting(s) | |||||||||
| Related Documents | |||||||||
| GRBP/2024/23 | UN R117: Proposal for a Supplement 3 to the 04 series of amendments (superseded) | ||||||||
| GRBP-80-11 | UN R117: Proposal for Supplement 3 to the 04 series of amendments (superseded) | ||||||||
| GRBP/2025/13 | UN R117: Proposal for Supplement 3 to the 04 series of amendments (superseded) | ||||||||
| GRBP-81-09/Rev.1 | UN R117: Proposal to supersede document GRBP/2025/13 (superseded) | ||||||||
| Downloads | |||||||||
| UNECE server | .pdf format | .docx format | |||||||
| GAR server | .pdf format | .docx format | |||||||
| Excerpts from session reports related to this document | |||||||||
| WP.29 | Session 196 | 23-27 Jun | |||||||||